A
We have a case where customer specified a stepped type TW with dia 25mm at cold end (below flange) and tip dia 16mm (i.e for U=470mm, 25mm dia for a length of 390mm below flange and remaining 80mm length will be of 16mm dia). RTD is 3-wire, duplex Pt100, Medium gas, max temp 60degC, max pressure 62 barg, velocity 8.4m/sec, density 73.35kg/m3. For better stability, we need to increase thermowell dia to 35mm and 27mm at flange and tip respectively instead of 25mm and 16mm. Can anyone please advise the impact on response time due to the increase in TW dia